how do you create a reversing Ring Counter ?

Bloodninja

New Member
Hello everyone,

I was wondering..

if we have a Ring Counter its supposed to go through this sequence 1000, 0100, 0010, 0001
but how do you make it go back instead of resetting to 1000 ?

like 1000, 0100, 0010, 0001, 0010, 0100, 1000
 
Last edited:
Hi
I would use a right/left 4 bit shift register.
 
Google: Knight Rider light circuit

Ken
 
Cheers KMoffett !

I expected it to be a 4017 decade counter. I was just thinking of making my own circuit made of flip flops synchronous counter, i failed to design it because the states of the counter have to reverse direction...
 
For 4 or 5 outputs, how about a 4017 and diode or logic ORing the outputs?

Ken
 
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